For time immemorial, humans have been intrigued by creation. Where did we, and the universe in which we live, come from? In the Rig Veda, it was proposed that before creation there was "neither existence nor non-existence." The Latin phrase ex nihilo nil fit ("out of nothing comes nothing") sums up current human beliefs about origins.
It has been proposed using some kinda Microwave Probe calculation that the Bigbang happened some 13700000000 Years Ago Approximately (1 year = 365 Earth days). To be a little precise ((13.7 ± 0.2) × 10^9 years - with an uncertainty of 200 million years (The Number is 200,000,000),... Phew - so very precise i guess..!! )- This is calculated on the account that the Bigbang happened at Time zero.
The temperature level at Bigbang was supposed to be 10^25 K ~ and now the average temperature of our Universe is around 3 K.
Now just imagine, how long it has been happened.Things are so big when you try to understand in Universal Timeline.
The postulate proceeds as after the Bigbang the Early years of the universe consisted of some unknown events.Then it happened like the following Chronological Fashion - Formation of sub-atomic particles - Formation of Lighter Elements - Formation of Atoms/Heavier Elements - Formation of Proto-galaxies - Formation of galaxies - And NOW..The Timeline is pointing right over our Heads....!! ~ so that supports the famous statement.. "We are star stuff
Looking back over the scales of the universe and seeing humanity's role, unimaginably small in both space and time, one might wonder whether science has painted a bleak, depressing, and hopeless picture for humanity. Some would say so, while others find comfort in the majesty and grandeur of the universe. The answer is left to you, and to everyone individually. The job of science is to provide you with facts and truths, but interpreting and finding meaning for those truths is outside of its scope. The universe is what it is, but what that means is what you make of it.
So the First modern human to crawl out - dates to only 40000 years ago, or ninety minutes ago by our astronomer's clock.
Some tourists in the Chicago Museum of Natural History are marveling at the dinosaur bones. One of them asks the guard, "Can you tell me how old the dinosaur bones are?"
The guard replies, "They are 73 million, four years, and six months old."
"That's an awfully exact number," says the tourist. "How do you know their age so precisely?"
The guard answers, "Well, the dinosaur bones were seventy three million years old when I started working here, and that was four and a half years ago."
Looking out into space is like looking back in Time.Using our jet to take a trip from Earth to Saturn would take about fifty years. Light takes about 80 minutes to travel from Saturn to Earth, depending on where Earth and Saturn are in their orbits. Because it takes so long for light to make the trip from Saturn, the light we see from the planet at a given moment actually left 80 minutes ago. This means that we don't see Saturn as it is presently, but as it was 80 minutes ago. This means that looking out into space is like looking back in time. The farther we look, the older the light.
The Stars we are looking out at night might have been dead years ago!!
We would never know in Our Lifetime how insane is the universe.
